1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
package raid; # $Id$
use diagnostics;
use strict;
#-######################################################################################
#- misc imports
#-######################################################################################
use common qw(:common :functional);
use partition_table qw(:types);
use run_program;
use devices;
use commands;
use fs;
sub nb($) {
my ($nb) = @_;
first((ref $nb ? $nb->{device} : $nb) =~ /(\d+)/);
}
sub new($$) {
my ($raid, $part) = @_;
my $nb = @$raid;
$raid->[$nb] = { 'chunk-size' => "64k", type => 0x83, disks => [ $part ], device => "md$nb", notFormatted => 1 };
$part->{raid} = $nb;
delete $part->{mntpoint};
$nb;
}
sub add($$$) {
my ($raid, $part, $nb) = @_; $nb = nb($nb);
$raid->[$nb]{isMounted} and die _("Can't add a partition to _formatted_ RAID md%d", $nb);
$part->{raid} = $nb;
delete $part->{mntpoint};
push @{$raid->[$nb]{disks}}, $part;
}
sub delete($$) {
my ($raid, $nb) = @_;
$nb = nb($nb);
delete $_->{raid} foreach @{$raid->[$nb]{disks}};
undef $raid->[$nb];
}
sub changeNb($$$) {
my ($raid, $oldnb, $newnb) = @_;
if ($oldnb != $newnb) {
($raid->[$newnb], $raid->[$oldnb]) = ($raid->[$oldnb], undef);
$raid->[$newnb]{device} = "md$newnb";
$_->{raid} = $newnb foreach @{$raid->[$newnb]{disks}};
}
$newnb;
}
sub removeDisk($$) {
my ($raid, $part) = @_;
my $nb = nb($part->{raid});
run_program::run("raidstop", devices::make($part->{device}));
delete $part->{raid};
@{$raid->[$nb]{disks}} = grep { $_ != $part } @{$raid->[$nb]{disks}};
update($raid->[$nb]);
}
sub updateSize($) {
my ($part) = @_;
local $_ = $part->{level};
my @l = map { $_->{size} } @{$part->{disks}};
$part->{size} = do {
if (/0|linear/) { sum @l }
elsif (/1/ ) { min @l }
elsif (/4|5/) { min(@l) * $#l }
};
}
sub module($) {
my ($part) = @_;
my $mod = $part->{level};
$mod = 5 if $mod eq "4";
$mod = "raid$mod" if $mod =~ /^\d+$/;
$mod;
}
sub updateIsFormatted($) {
my ($part) = @_;
$part->{isFormatted} = and_ map { $_->{isFormatted} } @{$part->{disks}};
$part->{notFormatted} = and_ map { $_->{notFormatted} } @{$part->{disks}};
}
sub update {
foreach (@_) {
updateSize($_);
updateIsFormatted($_);
}
}
sub write($) {
my ($raid, $file) = @_;
local *F;
local $\ = "\n";
open F, ">$file" or die _("Can't write file $file");
foreach (grep {$_} @$raid) {
print F <<"EOF";
raiddev /dev/$_->{device}
raid-level $_->{level}
chunk-size $_->{'chunk-size'}
persistent-superblock 1
EOF
print F "nr-raid-disks ", int @{$_->{disks}};
map_index {
print F " device ", devices::make($_->{device});
print F " raid-disk $::i";
} @{$_->{disks}};
}
}
sub make {
my ($raid, $part) = @_;
isMDRAID($_) and make($raid, $_) foreach @{$part->{disks}};
my $dev = devices::make($part->{device});
eval { commands::modprobe(module($part)) };
run_program::run("raidstop", $dev);
&write($raid, "/etc/raidtab");
run_program::run("mkraid", "--really-force", $dev) or die
$::isStandalone ? _("mkraid failed (maybe raidtools are missing?)") : _("mkraid failed");
}
sub format_part($$) {
my ($raid, $part) = @_;
$part->{isFormatted} and return;
make($raid->{raid}, $part);
fs::real_format_part($part);
$_->{isFormatted} = 1 foreach @{$part->{disks}};
}
sub verify($) {
my ($raid) = @_;
$raid && $raid->{raid} or return;
foreach (grep {$_} @{$raid->{raid}}) {
@{$_->{disks}} >= ($_->{level} =~ /4|5/ ? 3 : 2) or die _("Not enough partitions for RAID level %d\n", $_->{level});
}
}
sub prepare_prefixed($$) {
my ($raid, $prefix) = @_;
$raid && $raid->{raid} or return;
eval { commands::cp("-f", "/etc/raidtab", "$prefix/etc/raidtab") };
foreach (@{$raid->{raid}}) {
devices::make("$prefix/dev/$_->{device}") foreach @{$_->{disks}};
}
}
sub stopAll() { run_program::run("raidstop", devices::make("md$_")) foreach 0..7 }
1;
|
